diff mbox series

media: cx231xx: Constify struct vb2_ops

Message ID 9813724e0fe5a8a7067bb37475226ff2e0f042ed.1718519562.git.christophe.jaillet@wanadoo.fr
State Accepted
Commit d2ae63c2f6a34e0104c046dcf5e03675867e0ad3
Headers show
Series media: cx231xx: Constify struct vb2_ops | expand

Commit Message

Christophe JAILLET June 16, 2024, 6:32 a.m. UTC
"struct vb2_ops" are not modified in this driver.

Constifying this structure moves some data to a read-only section, so
increase overall security.

On a x86_64, with allmodconfig:
Before:
======
   text	   data	    bss	    dec	    hex	filename
  36607	   1156	      0	  37763	   9383	drivers/media/usb/cx231xx/cx231xx-417.o

After:
=====
   text	   data	    bss	    dec	    hex	filename
  36735	   1016	      0	  37751	   9377	drivers/media/usb/cx231xx/cx231xx-417.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
 drivers/media/usb/cx231xx/cx231xx-417.c   | 2 +-
 drivers/media/usb/cx231xx/cx231xx-video.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/media/usb/cx231xx/cx231xx-417.c b/drivers/media/usb/cx231xx/cx231xx-417.c
index 343a4433ed24..abb967c8bd35 100644
--- a/drivers/media/usb/cx231xx/cx231xx-417.c
+++ b/drivers/media/usb/cx231xx/cx231xx-417.c
@@ -1453,7 +1453,7 @@  static void stop_streaming(struct vb2_queue *vq)
 	return_all_buffers(dev, VB2_BUF_STATE_ERROR);
 }
 
-static struct vb2_ops cx231xx_video_qops = {
+static const struct vb2_ops cx231xx_video_qops = {
 	.queue_setup		= queue_setup,
 	.buf_queue		= buffer_queue,
 	.start_streaming	= start_streaming,
diff --git a/drivers/media/usb/cx231xx/cx231xx-video.c b/drivers/media/usb/cx231xx/cx231xx-video.c
index 8f347bbeeb32..435eb0b32cb1 100644
--- a/drivers/media/usb/cx231xx/cx231xx-video.c
+++ b/drivers/media/usb/cx231xx/cx231xx-video.c
@@ -795,7 +795,7 @@  static void stop_streaming(struct vb2_queue *vq)
 	return_all_buffers(dev, VB2_BUF_STATE_ERROR);
 }
 
-static struct vb2_ops cx231xx_video_qops = {
+static const struct vb2_ops cx231xx_video_qops = {
 	.queue_setup		= queue_setup,
 	.buf_queue		= buffer_queue,
 	.start_streaming	= start_streaming,